In September, Larson Inc. sold 50,000 units of its only product for $317,000 and incurred a total cost of $295,000, of which $32,000 was fixed costs. The flexible budget for September showed total sales of $370,000. Among variances of the period were: total variable cost flexible-budget variance, $8,000U; total flexible-budget variance, $77,000U; and, sales volume variance, in terms of contribution margin, $34,000U. The actual amount of operating income earned in September, to the nearest dollar, was: Multiple Choice O $22,000 O $50,000. O $77,000. O $99,000 O $133,000